Digital Modulation is the process of converting between bits and signals.Transmission MechanismsThe various modulation schemes result in various transmission mechanisms which are as follows −Baseband transmission.Passband transmission.Multiplexing TechniquesSharing of a transmission channel by various signals is called multiplexing. The different multiplexing techniques are as follows −Time division multiplexing.Frequency division multiplexing.Code division multiplexing.Now, let us discuss one of the digital modulation schemes.Baseband TransmissionBaseband transmission is transmission of the encoded signal using its own baseband frequencies i.e. without any shift to higher frequency ranges. It is used for short distances.Steps in Baseband TransmissionLet us understand the baseband transmission step by step.Step 1 ... Read More

Digital wireless communication is not a new idea. Earlier, Morse code implemented the wireless network. Now-a-days, the modern digital systems use wireless systems of the same idea as Morse code as implemented but with better performance.Categories of Wireless NetworksWireless Networks are divided into three categories as explained below −System InterconnectionIt is all about interconnecting the components of a computer using short-range radio. Some companies together design a short-range wireless network called Bluetooth to connect various components like monitor, keyboard, mouse, printer etc, without wires.In simplest form, system interconnection networks use the master-slave concept. The system unit is normally the master. ... Read More

Transmitting the data in the form of packets over the internet is called casting.Types of CastingsThe different types of casting are as follows −Unicast − Transmitting data from one host to another host (one-one)Broad cast − Transmitting data from one host to many host (one-all)Multicast − Transmitting data from one host to a particular group of host (one-many).Let us see each casting type in detail −UnicastTransmitting data from one source host to one destination host is called a unicast. It is called as a one to one transmission.For example − source Host IP Address 192.168.20.1 sending data to destination Host ... Read More

Computer network is a group of computers or nodes that are linked to each other to share information and resources. Whereas, IP addresses are generally represented by a 32-bit unsigned binary value. It is represented in a dotted decimal format.For example, 9.250.7.5 is a valid IP address.The IP address consists of a pair of numbers −IP address = Let see the pictorial representation of two hosts that are communicated with the help of Network and IP address.ExplanationStep 1 − The service that is used to convert the Domain name to IP address is called Domain Name Service.Step 2 − The ... Read More

IP addresses are generally represented by a 32-bit unsigned binary value. It is represented in a dotted decimal format. For example, 9.250.7.5 is a valid IP address.The IP address consists of a pair of numbers −IP address = Class-based IP addressesThe first bits of the IP address specify how the rest of the address should be separated into its network and host part. This IP address consists of network ID and Host ID.Classes of IP addressThere are 5 classes of IP address in computer network, which are as follows −Class AClass BClass CClass DClass EThe numbers of IP addresses possible ... Read More

Bluetooth is a service that helps in sharing data between multiple devices. We communicate with our computers or any other mobile devices with the help of Bluetooth. Also, it allows us to have a conversation without wires. Nowadays, Bluetooth wireless earphones are there that you can use to listen to music and for discussions. The only problem with these Bluetooth devices is that they have their specific range connected with other devices.BluejackingBluejacking works in a similar way to that of Bluetooth. It is used for sending unlicensed messages to the other Bluetooth device. Bluetooth is the shortrange wireless technology for ... Read More

What is Gossip Protocol?Gossip protocol is a computer peer-to-peer communication mechanism or process based on how epidemics spread. To ensure that data is distributed to all group members, several distributed systems use peerto-peer gossip. Since some ad-hoc networks lack a central registry, the only method to disseminate shared data is for each member to pass it on to their neighbors.Because gossip conveys information just like how a virus spreads in a biological community, the phrase "epidemic protocol" is frequently used interchangeably with the gossip protocol.Periodic, paired inter-process interactions are at the heart of the protocol. The amount of data transferred ... Read More

Excel and Tableau are two convenient tools for the development, storage, and analysis of your data.Microsoft ExcelMicrosoft Excel is a spreadsheet application used for calculations, statistical operations, data analysis, and outlining. Excel spreadsheets are electronics worksheets that show data in tabular forms, with rows and columns. Data is kept in cells. Also, you can create graphs, charts, or presentations to highlight a specific intuition.TableauTableau is a business intelligence tool to get perception from details, find the trends, and make the business choice. Tableau can easily format data in the graphical view to mark the patterns and relations between the informative ... Read More

Wireless data operations are expected to increase at an average of 100-200 percent per year, and the mobile communications industry agrees that it will be the cornerstone of the future business. People enjoy the benefits of non-voice services, as evidenced by the massive success of short messaging in many countries.EDGE (Enhanced Data Rate for GSM Evolution)EDGE allows for a faster transmission rate than standard GSM. It makes use of a backward-compatible GSM digital mobile technology extension. EDGE employs part of the ITU's 3G standard and has a pre-3G radio technology. With the proper modifications, it can work on any GPRS ... Read More

Google DriveGoogle Drive is a file hosting service provided by Google. It was launched on April 24, 2012. It allows users to store files in the cloud, sync files across devices, and share files.In addition to a web interface, Google Drive has Apps for most devices that can be used offline.Google Drive doesn't only help you save files, it also serves as a central location for all of your Google activities.Google's whole ecosystem of products, including its G Suite of office apps, is compatible with the Drive. So, chances are most people on the Internet already have a Google Drive ... Read More